EP 1880781 A1 20080123 - FLASKLESS MOLDING METHOD
Title (en)
FLASKLESS MOLDING METHOD
Title (de)
KASTENLOSES FORMVERFAHREN
Title (fr)
PROCEDE DE MOULAGE EN MOTTE
Publication
Application
Priority
- JP 2006309400 W 20060510
- JP 2005137127 A 20050510
Abstract (en)
A flaskless molding method, wherein a match plate (5) is held between an upper flask (2) and a lower flask (3) and squeeze plates (6) and (7) are inserted into the openings of the upper flask (2) and the lower flask (3) to form an upper manufacturing space and a lower manufacturing space with initial volumes. A foundry sand is filled in the upper and lower manufacturing spaces with the initial volumes through the supply ports of the flask (2) and (3) (first filling). Next, the squeeze plates (6) and (7) are retreated to expand the upper and lower manufacturing spaces more than the initial volumes. The foundry sand is filled again in the expanded upper and lower manufacturing spaces through the supply ports (second filling). After the second filling is completed, the squeeze plates (6) and (7) are advanced to compress the foundry sand in the upper and lower manufacturing spaces so as to manufacture the upper and the lower flasks stacked on each other.
IPC 8 full level
B22C 15/28 (2006.01)
CPC (source: EP KR US)
B22C 11/10 (2013.01 - EP US); B22C 15/28 (2013.01 - EP KR US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1880781 A1 20080123; EP 1880781 A4 20090722; EP 1880781 B1 20110316; BR PI0608786 A2 20100126; BR PI0608786 B1 20150210; CN 101175589 A 20080507; CN 101175589 B 20100519; DE 602006020716 D1 20110428; DK 1880781 T3 20110620; JP 2006315012 A 20061124; JP 4374619 B2 20091202; KR 101135781 B1 20120416; KR 20080009320 A 20080128; PL 1880781 T3 20110729; US 2009078389 A1 20090326; US 8056605 B2 20111115; WO 2006121076 A1 20061116
DOCDB simple family (application)
EP 06746214 A 20060510; BR PI0608786 A 20060510; CN 200680016108 A 20060510; DE 602006020716 T 20060510; DK 06746214 T 20060510; JP 2005137127 A 20050510; JP 2006309400 W 20060510; KR 20077028619 A 20060510; PL 06746214 T 20060510; US 91362406 A 20060510